I have a Hydor PH that is not labelled anywhere. I have 2x 1400's that are labelled. This undentified one seems rounder and larger, any ideas how to ID it?
Could be one of their older Koralia K series which were larger than the new Evolutions or a Magnum series? What is the mounting like and does it have a shaft for the propeller? What color is the propeller?
Thats an older Hydor Koralia K-1, -2, -3 or -4. Hard to tell which one but it looks just like my K-1 which is rated at 400 GPH in my 16G bowfront nano. The newer Evolutions Nano 425 is smaller, uses less power, puts out more flow and is controller safe so can stand up to starts and stops where the Koralia K series does not.
Here are a few photos I took a while back, unfortunately I don't have one of a K-4 and a Evo 1400 side by side but both do appear in the pics at different times.
Here is a Evo 1400 next to a Sicce Voyager 3:
Here is a Koralia K-1 next to the Evo 1400 and Voyager:
Here is an old K-4 next to the Voyager, note the red impeller in the K-4:
The Koralia K-1 has a blue impeller and the K-4 has a red impeller so I would say yours is a K-2 or K-3. The K-2, K-3 and K-4 all share the same body and cover so its hard to tell one from another.